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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
Pick tools (3 selected)
chat
research
coding
image
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design
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GitHub Copilot
B
OpenAI Voice / Realtime
S
Flux (Black Forest Labs)
A
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.ChatGPT's voice + the Realtime API for developers.Open weights + strong photorealism. The open-source answer.
Categorycodingvoiceimage
PricingFree (limited) + $10/mo Pro + $19/mo BusinessVoice included with ChatGPT Plus; Realtime API by usageAPI + open weights (Schnell is Apache 2.0)
Best forTeams with GitHub already. Devs who don't want to change IDEs.Voice chat users, developers building voice agents on OpenAI.Developers + power users who want control and privacy.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.A-tier. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →